CN220603579U - Current detection point structure and current detection device - Google Patents
Current detection point structure and current detection device Download PDFInfo
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- CN220603579U CN220603579U CN202322099665.XU CN202322099665U CN220603579U CN 220603579 U CN220603579 U CN 220603579U CN 202322099665 U CN202322099665 U CN 202322099665U CN 220603579 U CN220603579 U CN 220603579U
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- connecting part
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- hole
- detection terminal
- point structure
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- 238000001514 detection method Methods 0.000 title claims abstract description 92
- 239000004020 conductor Substances 0.000 claims abstract description 78
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000002513 implantation Methods 0.000 claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 description 11
- 230000001965 increasing effect Effects 0.000 description 4
- 238000011900 installation process Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- QZLJNVMRJXHARQ-UHFFFAOYSA-N [Zr].[Cr].[Cu] Chemical compound [Zr].[Cr].[Cu] QZLJNVMRJXHARQ-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model discloses a current detection point structure and a current detection device, comprising a detection terminal and a connecting hole, wherein the connecting hole is formed in a conductor, one end of the detection terminal is an implantation part, and the detection terminal is fixedly connected in the connecting hole through the implantation part; the implantation part sequentially comprises a first connecting part, a second connecting part and a third connecting part towards the electric conductor, the width of the first connecting part is larger than that of the second connecting part, the third connecting part and the connecting hole, the width of the third connecting part is larger than that of the second connecting part, and a filling space is formed between the first connecting part and the third connecting part on the periphery of the second connecting part; the third connecting part is arranged in the connecting hole, the first connecting part is pressed and buried in the conductor at the connecting hole, and the filling space is filled with the material of the conductor; and a plurality of filling grooves are formed in the peripheral outer wall of the first connecting part, and at least part of the filling grooves are filled with the material of the electric conductor.
Description
Technical Field
The utility model belongs to the technical field of current detection, and particularly relates to a current detection point structure and a current detection device.
Background
Current sensing devices are commonly used in a variety of electrical devices. Typically, the current sensing device includes a resistor and a pair of electrodes. The resistor is a plate-shaped resistor made of a metal material and has a small temperature coefficient of resistance, and the electrode is made of a metal material and has high conductivity and is connected to both ends of the resistor.
U.S. Pat. No. 10564188B2 discloses a current detecting device in which at least one of a bent portion, an upper flange and a lower flange is formed on a voltage detecting terminal, and a through hole is formed in an electrode, and the voltage detecting terminal is fixed to the electrode through at least one of the bent portion, the upper flange and the lower flange after passing through the through hole.
The utility model patent application No. 20160033591. X discloses a current detection device and a method of manufacturing the same, the current detection device comprising: an electric conductor made of a conductive metal; and a voltage detection terminal provided on the conductor, the voltage detection terminal being formed by passing a rod-shaped metal through a through hole formed in the conductor, and having a first terminal portion received in the through hole and a second terminal portion protruding from the through hole.
In the prior art, the detection terminals are fixed on the electric conductor through the upper flange and the lower flange, the detection terminals with the upper flange are required to pass through the holes, the upper flange is clamped on the upper surface of the electric conductor, and then the lower end of the detection terminals is pressed and deformed to form a second flange which is clamped on the lower surface of the electric conductor, so that the detection terminals are fixed on the electric conductor. The entire installation process of the prior art is cumbersome and often results in unreliable electrical connections due to dimensional tolerances.
Disclosure of Invention
Aiming at the problems in the background art, the utility model aims to provide a current detection point structure which comprises a detection terminal and a connecting hole, wherein the connecting hole is formed in a conductor, one end of the detection terminal is an implantation part, and the detection terminal is fixedly connected in the connecting hole through the implantation part;
the implantation part sequentially comprises a first connecting part, a second connecting part and a third connecting part towards the electric conductor, the width of the first connecting part is larger than that of the second connecting part, the width of the third connecting part is larger than that of the second connecting part, and a filling space is formed between the first connecting part and the third connecting part on the periphery of the second connecting part;
the third connecting part is arranged in the connecting hole, the first connecting part is pressed and buried in the conductor at the connecting hole, and the filling space is filled with the material of the conductor;
and a plurality of filling grooves are formed in the peripheral outer wall of the first connecting part, and at least part of the filling grooves are filled with the material of the electric conductor.
Preferably, the filling groove is a chute, and the chute is inclined from one end of the first connecting part to the other end.
Preferably, the width of the third connecting portion is smaller than or equal to the connecting hole.
Preferably, the first connecting portion, the second connecting portion and the third connecting portion are all flange structures.
Preferably, the connecting hole is a blind hole, and after the connecting, the third connecting part and the bottom surface of the connecting hole are gapless.
Preferably, the material of the conductor is copper.
Preferably, the material hardness of the detection terminal is greater than that of the conductor.
Preferably, the width of the first connecting portion is greater than one end of the detection terminal away from the implantation portion, and one end surface of the first connecting portion away from the conductor is a pressing surface.
Preferably, the volume of the portion of the first connecting portion protruding radially from the connecting hole on the circumferential side is greater than or equal to the volume of the filling space.
Based on the same conception, the utility model also provides a current detection device, which comprises at least two current detection point structures, two electric conductors and a resistor body, wherein the current detection point structures are in any embodiment, two ends of the resistor body are respectively connected with the two electric conductors, and at least one current detection point structure is respectively arranged on the two electric conductors.
By adopting the technical scheme, the utility model has the following advantages and positive effects compared with the prior art:
1. the detection terminal is pressed and riveted in the connecting hole through the implantation part, so that the connection with the conductor can be realized, and the installation process is simple and convenient. And when in press riveting, the first connecting part is pressed to enable the conductor to generate plastic deformation, so that the material of the conductor can be filled into the filling space and the filling groove, and the conductor material entering the filling space is clamped between the first connecting part and the third connecting part, so that the detection terminal is limited and fixed in the connecting hole. The conductor material that gets into in the filling groove makes the area of contact that has increased conductor and first connecting portion, on the one hand makes the connection more firmly prevent that detection terminal from falling out, on the other hand has also increased the electric connection area of conductor and detection terminal for electric connection is more reliable, and the conductor material that gets into the filling groove has still played circumference and axial spacing effect simultaneously, prevents to use after a long time that detection terminal becomes flexible or press-riveting assembly incompletely leads to get into between conductor material and the detection terminal of filling space and produce the clearance and make detection terminal produce the circumstances of circumference rotation and axial displacement, has especially prevented that detection terminal from producing the circumstances of circumference rotation.
2. The filling groove is the chute, so that the limit effect of the circumferential direction and the axial direction of the detection terminal is realized, the labor is saved when the detection terminal is riveted, the conductor material can be obliquely filled into the chute along the direction of the riveting force, the filling is more sufficient, and the condition of incomplete filling is prevented.
3. According to the utility model, the width of the first connecting part is larger than that of one end of the detection terminal far away from the implanted part, the end surface of the first connecting part far away from the conductor is a pressing surface, and the detection terminal can be pressed and riveted into the connecting hole by applying pressure to the pressing surface, so that the rest part of the detection terminal is not stressed, the deformation of the detection terminal is greatly reduced, the performance of the detection terminal is prevented from being influenced by excessive damage to the detection terminal, and the coating of the detection terminal is prevented from being damaged.
Drawings
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
fig. 1 is a schematic diagram showing connection between a detection terminal and an electrical conductor according to the present utility model.
Reference numerals illustrate:
1. a detection terminal; 2. an electric conductor; 3. a connection hole; 4. a first connection portion; 5. a second connecting portion; 6. a third connecting portion; 7. filling the space; 8. filling the groove; 9. and (5) pressing the surface.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples. The advantages and features of the present utility model will become more apparent from the following description. It is noted that the drawings are in a very simplified form and utilize non-precise ratios, and are intended to facilitate a convenient, clear, description of the embodiments of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Example 1
Referring to fig. 1, the core of the present utility model is to provide a current detecting point structure, which comprises a detecting terminal 1 and a connecting hole 3, wherein the connecting hole 3 is opened on a conductor 2, one end of the detecting terminal 1 is an implantation portion, and the detecting terminal 1 is fixedly connected in the connecting hole 3 through the implantation portion.
The implantation portion includes a first connecting portion 4, a second connecting portion 5 and a third connecting portion 6 sequentially toward the electric conductor 2, and the first connecting portion 4, the second connecting portion 5 and the third connecting portion 6 are all of flange structures, and each portion of the detection terminal 1 in this embodiment is cylindrical, but other shapes may be used in other embodiments without limitation.
The width of the first connecting part 4 is larger than that of the second connecting part 5, the third connecting part 6 and the connecting hole 3, the width of the third connecting part 6 is larger than that of the second connecting part 5, a filling space 7 is formed between the first connecting part 4 and the third connecting part 6 on the periphery of the second connecting part 5, the third connecting part 6 is arranged in the connecting hole 3, the first connecting part 4 is pressed and buried in the conductor 2 at the connecting hole 3, and the material of the conductor 2 is filled in the filling space 7. The peripheral outer wall of the first connecting portion 4 is provided with a plurality of filling grooves 8, and at least part of the filling grooves 8 are filled with the material of the electric conductor 2.
The first connection portion 4 may be partially embedded in the conductive body 2, or may be entirely embedded in the conductive body 2, and may be flexibly selected according to practical situations, which is not limited herein.
In this embodiment, the material of the conductor 2 is copper, and the detection terminal 1 may be red copper, brass, phosphor bronze, metallurgical aluminum, chromium zirconium copper (CrZrCu), beryllium copper, stainless steel or an alloy material thereof, and the hardness of the material of the detection terminal 1 is greater than that of the conductor 2, so that the detection terminal 1 can be smoothly press-riveted into the conductor 2.
The detection terminal 1 can be connected with the conductor 2 through the press riveting of the implantation part in the connecting hole 3, the installation process is simple and convenient, only the installation is needed in one direction, the front surface of the conductor 2 is not needed to be implanted with a needle as in the prior art, and the back surface of the conductor is processed to the detection terminal 1 to form a bending part or a flange, so that the processing efficiency of the embodiment is higher.
And when in press riveting, the first connecting part 4 is pressed to enable the electric conductor 2 to generate plastic deformation, so that the material of the electric conductor 2 can be filled into the filling space 7 and the filling groove 8, and the material of the electric conductor 2 entering the filling space 7 is clamped between the first connecting part 4 and the third connecting part 6, so that the detection terminal 1 is limited and fixed in the connecting hole 3. The conductor 2 material in the filling groove 8 increases the contact area between the conductor 2 and the first connecting part 4, so that on one hand, the connection is firmer, the detection terminal 1 is prevented from falling out, and on the other hand, the electric connection area between the conductor 2 and the detection terminal 1 is also increased, so that the electric connection is more reliable, meanwhile, the conductor 2 material in the filling groove 8 also plays a circumferential and axial limiting role, the gap between the conductor 2 material in the filling space 7 and the detection terminal 1, which is caused by incomplete assembly of the detection terminal 1 after long use, is prevented, the detection terminal 1 is prevented from generating circumferential rotation and axial displacement, and particularly the detection terminal 1 is prevented from generating circumferential rotation, so that the detection terminal 1 can be firmly locked in the conductor 2 through the filling groove 8.
Preferably, the filling groove 8 is a chute, and the chute is inclined from one end of the first connecting portion 4 to the other end, so that the force is saved when the detection terminal 1 is riveted by pressing while the limit function of the circumferential direction and the axial direction of the detection terminal 1 is realized, the material of the conductor 2 can be obliquely filled into the chute along the direction of the riveting force, the filling is more sufficient, and the condition that the filling is not in place is prevented.
The width of the third connecting portion 6 is the same as that of the connecting hole 3, or may be slightly smaller than the diameter of the connecting hole 3, so that the third connecting portion 6 can smoothly enter the connecting hole 3 to be embedded, thereby facilitating the press riveting of the subsequent first connecting portion 4. Of course, in consideration of further enhancing the connection strength between the detection terminal 1 and the electrical conductor 2, the width of the third connection portion 6 may also be larger than the diameter of the connection hole 3, so that the third connection portion 6 may also be swaged into the connection hole 3, that is, so that the third connection portion 6 is in interference fit with the connection hole 3, further increasing the connection strength. That is to say, the requirement on the processing precision of the detection terminal 1 in this embodiment is not high, and the width of the third connecting portion 6 is larger than, smaller than, and equal to the diameter of the connecting hole 3, so that the connection with the conductor 2 can be realized, and the processing precision of the detection terminal 1 is greatly reduced.
Further, the connecting hole 3 is a blind hole, and after connection, the third connecting part 6 and the bottom surface of the connecting hole 3 are gapless. The volume of the portion of the first connecting portion 4 protruding radially from the connecting hole 3 on the peripheral side is greater than or equal to the volume of the filling space 7, so that the filling space 7 can be sufficiently filled with the material of the electrical conductor 2, so that the connection is more secure.
The width of the first connecting part 4 is larger than that of one end of the detection terminal 1 far away from the implantation part, and one end surface of the first connecting part 4 far away from the electric conductor 2 is a pressing surface 9. The detection terminal 1 can be riveted into the connecting hole 3 by applying pressure to the pressing surface 9, so that the rest part of the detection terminal 1 is not stressed, the deformation of the detection terminal 1 is greatly reduced, the performance of the detection terminal 1 is prevented from being influenced by excessive damage to the detection terminal 1, and the plating layer of the detection terminal 1 is prevented from being damaged.
Further, the lower end face of the third connecting portion 6 is further provided with a chamfer, so that the third connecting portion 6 can be conveniently guided into the connecting hole 3.
The following describes the assembly process of the press-riveting connection of the detection terminal 1 and the conductor 2 according to the present utility model:
the third connecting part 6 of the detection terminal 1 is pre-buried in the connecting hole 3, then the pressing surface 9 of the first connecting part 4 is pressed by a pressing riveting machine and other machines, the first connecting part 4 presses the electric conductor 2 to generate plastic deformation, so that the electric conductor 2 material at the periphery of the filling space 7 enters the filling space 7, and the electric conductor 2 material at the periphery of the first connecting part 4 enters the filling groove 8, thereby realizing the physical connection and the electric connection of the detection terminal 1 and the electric conductor 2.
Example 2
Another core of the present utility model is to provide a current detection device, which includes at least two current detection point structures of embodiment 1, two electrical conductors 2, and a resistor, wherein two ends of the resistor are respectively connected to the two electrical conductors 2, and at least one current detection point structure is respectively disposed on the two electrical conductors 2.
The current detection device of the embodiment can be applied to a current divider of a vehicle-mounted intelligent battery sensor of an electric automobile, and can effectively collect current data.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments. Even if various changes are made to the present utility model, it is within the scope of the appended claims and their equivalents to fall within the scope of the utility model.
Claims (10)
1. The current detection point structure is characterized by comprising a detection terminal and a connecting hole, wherein the connecting hole is formed in a conductor, one end of the detection terminal is an implantation part, and the detection terminal is fixedly connected in the connecting hole through the implantation part;
the implantation part sequentially comprises a first connecting part, a second connecting part and a third connecting part towards the electric conductor, the width of the first connecting part is larger than that of the second connecting part, the width of the third connecting part is larger than that of the second connecting part, and a filling space is formed between the first connecting part and the third connecting part on the periphery of the second connecting part;
the third connecting part is arranged in the connecting hole, the first connecting part is pressed and buried in the conductor at the connecting hole, and the filling space is filled with the material of the conductor;
and a plurality of filling grooves are formed in the peripheral outer wall of the first connecting part, and at least part of the filling grooves are filled with the material of the electric conductor.
2. The current detection point structure according to claim 1, wherein the filling groove is a chute inclined from one end of the first connection portion to the other end.
3. The current detection point structure according to claim 1, wherein a width of the third connection portion is smaller than or equal to the connection hole.
4. The current detection point structure according to claim 1, wherein the first connection portion, the second connection portion, and the third connection portion are each a flange structure.
5. The current detecting point structure according to claim 1, wherein the connection hole is a blind hole, and the third connection portion is free from a hole bottom surface of the connection hole after the connection.
6. The current detection point structure according to claim 1, wherein the conductive body is made of copper.
7. The current detection point structure according to claim 1, wherein the detection terminal has a material hardness greater than that of the conductor.
8. The current detecting point structure according to claim 1, wherein the first connecting portion has a width larger than an end of the detecting terminal away from the implanted portion, and an end face of the first connecting portion away from the conductive body is a press-fit face.
9. The current detecting point structure according to claim 1, wherein a volume of the portion of the first connection portion protruding radially from the connection hole on the circumferential side is greater than or equal to a volume of the filling space.
10. A current detecting device, comprising at least two current detecting point structures according to any one of claims 1 to 9, two electric conductors and a resistor, wherein two ends of the resistor are respectively connected with the two electric conductors, and at least one current detecting point structure is respectively arranged on the two electric conductors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322099665.XU CN220603579U (en) | 2023-08-07 | 2023-08-07 | Current detection point structure and current detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322099665.XU CN220603579U (en) | 2023-08-07 | 2023-08-07 | Current detection point structure and current detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220603579U true CN220603579U (en) | 2024-03-15 |
Family
ID=90179219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322099665.XU Active CN220603579U (en) | 2023-08-07 | 2023-08-07 | Current detection point structure and current detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220603579U (en) |
-
2023
- 2023-08-07 CN CN202322099665.XU patent/CN220603579U/en active Active
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